The 36 in. Knockdown Knife with Clear Lexan blade is used to flatten wall and ceiling texture patterns for that "knocked down" look. It erases trowel lines without creating chatter marks like other knives. The blade is both flexible and durable. Lexan blade is designed with the perfect amount of flex for consistent patterns Lexan 9034 blade wears much longer than acrylic or other plastic blades, it is virtually unbreakable Acute corner angle is designed for working in tight areas Threaded handle for use with extension poles ToolPro Knockdown Knives